Is granola bar high in oxalate?
B
No. Low, 6.1 mg per 1 bar
Range 6.1 to 6.1 mg across 1 study, 28 g serving
0 mg50 mg = a day60 mg+
Granola bar is low in oxalate: about 6.1 mg per 1 bar, which is 12% of the 50 mg a day many stone clinics aim for.
Where this number comes from
Each row is one published measurement, converted to a 28 g serving (1 bar). The grade and the range use the rows prepared the way the serving is eaten, and take the middle. How the grades work.
| Per serving | Per 100 g | Preparation | Source |
|---|---|---|---|
| 6.1 mg | 21.79 mg | Granola or cereal bar | Harvard T.H, 2023 |
By Oliver Silen · Data checked November 2, 2026 · Not medical advice